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Priority to JP5943672ApriorityCriticalpatent/JPS5145005B2/ja
Priority to SU1902122Aprioritypatent/SU489356A3/ru
Publication of JPS4919237ApublicationCriticalpatent/JPS4919237A/ja
Publication of JPS5145005B2publicationCriticalpatent/JPS5145005B2/ja